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virt-manager
085-virtManager-add-support-to-create-external-...
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File 085-virtManager-add-support-to-create-external-snapshots.patch of Package virt-manager
Subject: virtManager: add support to create external snapshots From: Pavel Hrdina phrdina@redhat.com Tue Jan 23 17:19:38 2024 +0100 Date: Mon Mar 25 13:21:50 2024 +0100: Git: 5488ff4773bd2fe046edeec33163f1229c8da901 Add new 2 rows into the snapshotsnew windows, one to select if the snapshot mode is `internal` or `external` and memory state location when making external snapshot for running VM. We will check if libvirt fully supports external snapshots by consulting host capabilities and add `external` to snapshot mode only if it is supported. For external snapshots the memory state is stored in separate file but libvirt doesn't have any default location so virtManager will get path to all usable disks and create a dropdown menu for it, but user is still allowed to modify that path to use whatever path they prefer. Signed-off-by: Pavel Hrdina <phrdina@redhat.com> diff --git a/ui/snapshotsnew.ui b/ui/snapshotsnew.ui index 8763e3d4..81dc75bd 100644 --- a/ui/snapshotsnew.ui +++ b/ui/snapshotsnew.ui @@ -1,5 +1,5 @@ <?xml version="1.0" encoding="UTF-8"?> -<!-- Generated with glade 3.38.2 --> +<!-- Generated with glade 3.40.0 --> <interface> <requires lib="gtk+" version="3.22"/> <object class="GtkWindow" id="snapshot-new"> @@ -89,7 +89,7 @@ <property name="visible">True</property> <property name="can-focus">False</property> <child> - <!-- n-columns=2 n-rows=4 --> + <!-- n-columns=2 n-rows=6 --> <object class="GtkGrid" id="snapshot-new-box"> <property name="visible">True</property> <property name="can-focus">False</property> @@ -134,7 +134,7 @@ </object> <packing> <property name="left-attach">0</property> - <property name="top-attach">2</property> + <property name="top-attach">4</property> </packing> </child> <child> @@ -153,7 +153,7 @@ </object> <packing> <property name="left-attach">1</property> - <property name="top-attach">2</property> + <property name="top-attach">4</property> </packing> </child> <child> @@ -213,7 +213,7 @@ </object> <packing> <property name="left-attach">0</property> - <property name="top-attach">3</property> + <property name="top-attach">5</property> </packing> </child> <child> @@ -223,6 +223,121 @@ <property name="halign">start</property> <property name="icon-name">image-missing</property> </object> + <packing> + <property name="left-attach">1</property> + <property name="top-attach">5</property> + </packing> + </child> + <child> + <object class="GtkLabel" id="snapshot-new-mode-label"> + <property name="visible">True</property> + <property name="can-focus">False</property> + <property name="halign">start</property> + <property name="label" translatable="yes">Snapshot _Mode:</property> + <property name="use-underline">True</property> + </object> + <packing> + <property name="left-attach">0</property> + <property name="top-attach">2</property> + </packing> + </child> + <child> + <object class="GtkButtonBox" id="snapshot-new-mode-box"> + <property name="visible">True</property> + <property name="can-focus">False</property> + <property name="layout-style">start</property> + <child> + <object class="GtkRadioButton" id="snapshot-new-mode-external"> + <property name="label" translatable="yes">_external</property> + <property name="visible">True</property> + <property name="can-focus">True</property> + <property name="receives-default">False</property> + <property name="use-underline">True</property> + <property name="active">True</property> + <property name="draw-indicator">True</property> + <signal name="toggled" handler="on_snapshot_new_mode_toggled" swapped="no"/> + </object> + <packing> + <property name="expand">True</property> + <property name="fill">True</property> + <property name="position">0</property> + </packing> + </child> + <child> + <object class="GtkRadioButton" id="snapshot-new-mode-internal"> + <property name="label" translatable="yes">_internal</property> + <property name="visible">True</property> + <property name="can-focus">True</property> + <property name="receives-default">False</property> + <property name="use-underline">True</property> + <property name="active">True</property> + <property name="draw-indicator">True</property> + <property name="group">snapshot-new-mode-external</property> + </object> + <packing> + <property name="expand">True</property> + <property name="fill">True</property> + <property name="position">1</property> + </packing> + </child> + </object> + <packing> + <property name="left-attach">1</property> + <property name="top-attach">2</property> + </packing> + </child> + <child> + <object class="GtkLabel" id="snapshot-new-memory-label"> + <property name="visible">True</property> + <property name="can-focus">False</property> + <property name="halign">start</property> + <property name="label" translatable="yes">Memory _State:</property> + <property name="use-underline">True</property> + </object> + <packing> + <property name="left-attach">0</property> + <property name="top-attach">3</property> + </packing> + </child> + <child> + <object class="GtkBox" id="snapshot-new-memory-box"> + <property name="visible">True</property> + <property name="can-focus">False</property> + <child> + <object class="GtkCheckButton" id="snapshot-new-memory-auto"> + <property name="label" translatable="yes">_auto</property> + <property name="visible">True</property> + <property name="can-focus">True</property> + <property name="receives-default">False</property> + <property name="use-underline">True</property> + <property name="draw-indicator">True</property> + <signal name="toggled" handler="on_snapshot_new_memory_toggled" swapped="no"/> + </object> + <packing> + <property name="expand">False</property> + <property name="fill">True</property> + <property name="position">0</property> + </packing> + </child> + <child> + <object class="GtkComboBox" id="snapshot-new-memory-path"> + <property name="visible">True</property> + <property name="can-focus">False</property> + <property name="hexpand">True</property> + <property name="has-entry">True</property> + <child internal-child="entry"> + <object class="GtkEntry"> + <property name="can-focus">True</property> + </object> + </child> + </object> + <packing> + <property name="expand">False</property> + <property name="fill">True</property> + <property name="position">1</property> + </packing> + </child> + </object> <packing> <property name="left-attach">1</property> <property name="top-attach">3</property> diff --git a/virtManager/details/snapshots.py b/virtManager/details/snapshots.py index a5c25131..ae9280ec 100644 --- a/virtManager/details/snapshots.py +++ b/virtManager/details/snapshots.py @@ -81,6 +81,8 @@ class vmmSnapshotNew(vmmGObjectUI): "on_snapshot_new_name_changed": self._name_changed_cb, "on_snapshot_new_name_activate": self._ok_clicked_cb, "on_snapshot_new_ok_clicked": self._ok_clicked_cb, + "on_snapshot_new_mode_toggled": self._mode_toggled_cb, + "on_snapshot_new_memory_toggled": self._memory_toggled_cb, }) self.bind_escape_key_close() @@ -92,6 +94,7 @@ class vmmSnapshotNew(vmmGObjectUI): def show(self, parent): log.debug("Showing new snapshot wizard") self._reset_state() + self.topwin.resize(1, 1) self.topwin.set_transient_for(parent) self.topwin.present() @@ -108,9 +111,43 @@ class vmmSnapshotNew(vmmGObjectUI): # UI init # ########### + def _init_snapshot_mode(self): + mode_external = self.widget("snapshot-new-mode-external") + + capsinfo = self.vm.xmlobj.lookup_capsinfo() + + if not capsinfo.guest.supports_externalSnapshot(): + mode_external.set_sensitive(False) + mode_external.set_tooltip_text( + _("external snapshots not supported with this libvirt connection")) + + def _init_memory_path(self): + mempaths = self.widget("snapshot-new-memory-path") + + model = Gtk.ListStore(str) + mempaths.set_model(model) + uiutil.init_combo_text_column(mempaths, 0) + def _init_ui(self): buf = Gtk.TextBuffer() self.widget("snapshot-new-description").set_buffer(buf) + self._init_snapshot_mode() + self._init_memory_path() + + def _reset_snapshot_mode(self): + mode_external = self.widget("snapshot-new-mode-external") + mode_internal = self.widget("snapshot-new-mode-internal") + + if mode_external.is_sensitive(): + mode_external.set_active(True) + else: + mode_internal.set_active(True) + + def _reset_snapshot_memory_path(self): + mode_box = self.widget("snapshot-new-mode-external") + self._set_memory_path_visibility(mode_box) + + self.widget("snapshot-new-memory-auto").set_active(True) def _reset_state(self): basename = "snapshot" @@ -134,8 +171,49 @@ class vmmSnapshotNew(vmmGObjectUI): if sn: self.widget("snapshot-new-screenshot").set_from_pixbuf(sn) + self._reset_snapshot_mode() + + self._reset_snapshot_memory_path() + self.widget("snapshot-new-name").grab_focus() + ############ + # UI utils # + ############ + + def _set_memory_path_visibility(self, mode_box): + uiutil.set_grid_row_visible(self.widget("snapshot-new-memory-label"), + mode_box.get_active() and self.vm.is_active()) + + def _populate_memory_path(self): + mempaths = self.widget("snapshot-new-memory-path") + + if mempaths.is_sensitive(): + return + + model = mempaths.get_model() + paths = [] + + model.clear() + + name = self.widget("snapshot-new-name").get_text() + memname = f"{self.vm.get_name()}-mem.{name}" + + for disk in self.vm.get_xmlobj().devices.disk: + diskpath = disk.get_source_path() + + if not diskpath: + continue + + newpath = os.path.join(os.path.dirname(diskpath), memname) + + if newpath not in paths: + paths.append(newpath) + + for path in paths: + model.append([path]) + + mempaths.set_active(0) ################### # Create handling # @@ -192,6 +270,13 @@ class vmmSnapshotNew(vmmGObjectUI): setattr(newpix, "vmm_sndata", sdata) return newpix + def _get_mode(self): + mode_external = self.widget("snapshot-new-mode-external") + if mode_external.get_active(): + return "external" + + return "internal" + def _new_finish_cb(self, error, details, newname): self.reset_finish_cursor() @@ -207,11 +292,16 @@ class vmmSnapshotNew(vmmGObjectUI): name = self.widget("snapshot-new-name").get_text() desc = self.widget("snapshot-new-description" ).get_buffer().get_property("text") + mode = self._get_mode() try: newsnap = DomainSnapshot(self.vm.conn.get_backend()) newsnap.name = name newsnap.description = desc or None + if mode == "external" and self.vm.is_active(): + mempath = uiutil.get_list_selection(self.widget("snapshot-new-memory-path")) + newsnap.memory_type = mode + newsnap.memory_file = mempath newsnap.get_xml() newsnap.validate_generic_name(_("Snapshot"), newsnap.name) return newsnap @@ -231,10 +321,10 @@ class vmmSnapshotNew(vmmGObjectUI): sndata = getattr(sn, "vmm_sndata", None) return mime, sndata - def _do_create_snapshot(self, asyncjob, xml, name, mime, sndata): + def _do_create_snapshot(self, asyncjob, xml, name, mime, sndata, diskOnly): ignore = asyncjob - self.vm.create_snapshot(xml, diskOnly=False) + self.vm.create_snapshot(xml, diskOnly=diskOnly) try: cachedir = self.vm.get_cache_dir() @@ -263,10 +353,11 @@ class vmmSnapshotNew(vmmGObjectUI): xml = snap.get_xml() name = snap.name mime, sndata = self._get_screenshot_data_for_save() + diskOnly = not self.vm.is_active() and self._get_mode() == "external" self.set_finish_cursor() progWin = vmmAsyncJob( - self._do_create_snapshot, [xml, name, mime, sndata], + self._do_create_snapshot, [xml, name, mime, sndata, diskOnly], self._new_finish_cb, [name], _("Creating snapshot"), _("Creating virtual machine snapshot"), @@ -280,10 +371,24 @@ class vmmSnapshotNew(vmmGObjectUI): def _name_changed_cb(self, src): self.widget("snapshot-new-ok").set_sensitive(bool(src.get_text())) + self._populate_memory_path() def _ok_clicked_cb(self, src): return self._create_new_snapshot() + def _mode_toggled_cb(self, src): + self._set_memory_path_visibility(src) + + def _memory_toggled_cb(self, src): + mempaths = self.widget("snapshot-new-memory-path") + + if src.get_active(): + mempaths.set_sensitive(False) + else: + mempaths.set_sensitive(True) + + self._populate_memory_path() + class vmmSnapshotPage(vmmGObjectUI): def __init__(self, vm, builder, topwin):
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